A line graph is a graph where the points are connected by lines.

A pie chart is a circular graph where sectors represent different groups in proportion to each other.

A sector is a part, or ‘pie-slice’ part, of a pie chart.

Interpret the scales used in graphs, including pie charts, to solve problems

Maths

In this unit pupils will interpret and construct pie charts and line graphs and use these to solve problems. They will read scales in graphing and measures contexts linking to fractions, angles, percentages and understanding proportional relationships In the future unit pupils will learn how to calculate the mean of a set of data and use the mean to make comparisons between two sets of information

In the prior unit pupils explained what percent meant and how to represent a percentage in different ways. They learned how to convert percentages to decimals and fractions and solved conversion problems. In this unit pupils will interpret and construct pie charts and line graphs. They will read scales  linked to fractions angles percentages and understanding proportional relationships.

Statistics

Andeep took part in the 800 m race. Estimate the time it took him to complete it. 

Andeep took part in an obstacle race including three challenges where he had to stop and complete a task. Estimate how long it took for him to reach the third challenge.

At what time did Izzy catch up with Andeep during the race? {{ }} seconds.

The children were taking part in a skipping challenge at Sports Day. Altogether they scored 160 points. How many points did Andeep score? {{ }} points.

The pie chart shows the number of points scored in a bean bag competition at Sports Day. The total number of points scored was 280; Sofia scored 40% of the points. How many points did Jun score?

The pie chart shows the number of points scored in a bean bag competition at Sports Day. The total number of points scored was 280; Sofia scored 40% of the points. How many points did Alex score?

The line graph shows how the temperature changes between the hours of 8 am and 7 pm. Estimate the temperature at 9:30 am. {{ }}°C 

This line graph shows how Izzy’s height has changed as she has grown. At what age would Izzy have been 110 cm tall?

This line graph shows Sam’s height from birth. Estimate Sam’s height at age 3 years.

The line graph shows the children’s journeys from school. At what time does Izzy leave home?

Which child’s journey takes the longest time?

The same number of children chose pasta as pizza.

The same number of children chose packed lunch as pizza.

More children chose packed lunch than pizza.

The pie chart shows children's lunch choices. Which of these statements are correct?

This lesson will soon be taken down.

Interpret the scales used in graphs, including pie charts, to solve problems

Lesson outcome